Costa Mar
type: MusicGroup
popularity: 6
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x10405caf73e90d89f7060dc0b2b273241c847880e6e9672803de724407459f8f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec1d364a-c7a0-44b3-bdfc-da9c48bc9e9e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec1d364a-c7a0-44b3-bdfc-da9c48bc9e9e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ec1d364a-c7a0-44b3-bdfc-da9c48bc9e9e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x10405caf73e90d89f7060dc0b2b273241c847880e6e9672803de724407459f8f","name":"Costa Mar","registered_at":"2026-06-21T11:29:50Z","symbol":"NIM1912110","token_address":"0x6bdbcb4101b67e9484b685f20454d1eab902a48b","type":"artist","uuid":"ec1d364a-c7a0-44b3-bdfc-da9c48bc9e9e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10405caf73e90d89f7060dc0b2b273241c847880e6e9672803de724407459f8f. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec1d364a-c7a0-44b3-bdfc-da9c48bc9e9e.json and https://artists.proofprofile.net/proofs/artist/ec1d364a-c7a0-44b3-bdfc-da9c48bc9e9e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x10405caf73e90d89f7060dc0b2b273241c847880e6e9672803de724407459f8f","name":"Costa Mar","registered_at":"2026-06-21T11:29:50Z","symbol":"NIM1912110","token_address":"0x6bdbcb4101b67e9484b685f20454d1eab902a48b","type":"artist","uuid":"ec1d364a-c7a0-44b3-bdfc-da9c48bc9e9e"}
album: Recordando a Costa Mar
  type: MusicAlbum
  date published: 2023-11-10